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Kinetics of domain growth: The relevance of two-step quenches

Dasgupta, Chandan and Pandit, Rahul (1986) Kinetics of domain growth: The relevance of two-step quenches. In: Physical Review B, 33 (7). pp. 4752-4757.


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Domain growth in the wake of a rapid quench from high to low temperatures is studied via Monte Carlo simulations of a ten-state Potts model on a triangular lattice. Quenches in which the temperature is lowered in one step and in two steps are studied. The exponent which characterizes the late-stage growth of domains is found to have different values for one-step and two-step quenches, if standard methods are used to obtain this exponent numerically. However, this difference becomes insignificant if the origin of time for two-step quenches is shifted relative to the origin for one-step quenches to compensate for the larger initial domain sizes in the two-step case. The interpretation of recent experiments on two-step quenches is shown to suffer from a similar ambiguity.

Item Type: Journal Article
Publication: Physical Review B
Publisher: American Physical Society
Additional Information: Copyright for this article belongs to American Physical Society (APS).
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 18 Jan 2007
Last Modified: 19 Sep 2010 04:13
URI: http://eprints.iisc.ac.in/id/eprint/1030

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